Hello, I got your question during a lecture and noted the answer down but it seems I forgot to upload it. Here's the answer to the differentiation part anyway

OMG haha thank you so much! This is great! I've been working on integration tonight and it's making sense! Still making silly mistakes with trig but on the whole much better. Will be working on curve sketching straight after. So this is great.
Yo you didn't have to do it during the lecture lol but THANKS

Hello, I got your question during a lecture and noted the answer down but it seems I forgot to upload it. Here's the answer to the differentiation part anyway

OMG haha thank you so much! This is great! I've been working on integration tonight and it's making sense! Still making silly mistakes with trig but on the whole much better. Will be working on curve sketching straight after. So this is great.
Yo you didn't have to do it during the lecture lol but THANKS

I was just wondering when a question asks you to find the st.pts on a curve and determine their nature, do I need to draw a sketch ? When it says determine their nature does that mean a sketch is needed or is the nature table enough ?

I was just wondering when a question asks you to find the st.pts on a curve and determine their nature, do I need to draw a sketch ? When it says determine their nature does that mean a sketch is needed or is the nature table enough ?

Thanks

If the question asks you to determine the nature that's all you have to do - include nature table. If it's looking for a sketch it will ask you to do so.

(Original post by Nuba123)
Haha, yeah lol it's not ideal. Are you doing AH maths all by yourself??? OMG I wouldn't be able to do that. I'm currently using SCHOLAR some of the content is started to make sense. So now I've realised that I'm taking it more seriously.

(Original post by DonAchille)
Have you got the Maths in action book? Is well worth getting.

Yeah, along with Mechanics and A Level physics.

No, I don't have it yet... But my teacher crisis has been sorted. We've got a new teacher who can teach. Our head has ordered textbooks - hopefully it's that one. Thanks for the advice. If you don't mind me asking are you home--schooled?

(Original post by Nuba123)
No, I don't have it yet... But my teacher crisis has been sorted. We've got a new teacher who can teach. Our head has ordered textbooks - hopefully it's that one. Thanks for the advice. If you don't mind me asking are you home--schooled?

No, I'm a mature student looking to change career and directions . That's great news!

Hi. Can anyone help me with the question below?...I know that I need to differentiate to find the stationary points and find the second derivative to show the value is a maximum, but I'm not sure if I'm doing it right. Thanks in advance.